Hi,
>That's for Windows/Exchange 2000. It doesn't say it will fall back
>though, it says, "Request for Comments (RFC) 883 and the later RFCs
>prescribe that DNS servers be able to accept both TCP virtual circuits
>and UDP."
I couldn't see in that RFC where it stated that it MUST. You should
note that that RFC was obsoleted by RFC1034 and RFC1035 in 1987 !!!
RFC1035 states:
> While virtual circuits can be used for any DNS activity, datagrams are
> preferred for queries due to their lower overhead and better
> performance.
Which is obviously why M$ chose TCP over UDP - nice, thanks Bill.
Neil.
--
Neil A. Hillard E-Mail: neil at dana dot org dot uk
Web: http://www.dana.org.uk/